9
5.1
Required tools (not included)
Commercially available tools are sufficient for installation and connection. No special
tools are required.
6 Installation
6.1
General
•
The underground distribution system must be installed by a qualified expert company.
•
The soil conditions must be assessed before preparing a load-bearing foundation pit
base.
-
The manhole must be installed in “non-cohesive” to “cohesive” mixed soils.
- Groups G1 to G3 soil types as per ATV-DVWK-A 127 (German Association for
Water, Waste Water and Waste), and/or soil groups GE, GW, GI, SE, SW, SI,
GU, GT, SU, ST, GU*, GT*, SU*, ST*, UL, and UM as per DIN 18196.
Caution!
Observe ZTV A-StB 12 (Supplementary Technical Contract Conditions and
Guidelines for the Construction of Asphalt Roads) for the construction of the road
surface!
6.2
Preparing the foundation pit base
When preparing the foundation pit, comply with the following documentation from the
Gütegemeinschaft Leitungstiefbau e.V. (Underground Cable Line Construction Quality
Association):
"Procedural instructions for performing tasks in underground cable line construction".
The position and depth of the foundation pit base must match the installation situation.
The upper edge of the manhole cover must lie completely flush with the surrounding
ground level and must not project.
Align the cover surface horizontally. The height cannot be adjusted with this product.
Underground distribution systems arranged next to each other must have a clearance of
at least 1.00 m between them.
The supply lines must be installed by the client according to their planning
specifications. The specifications in the Installation Instructions, Chapter 6.3.1 must be
observed.
Drainage
The water drainage system is connected via a predetermined breaking point in the
lowest frame. The installation of a backflow trap between the water drainage
connection and waste water system is recommended.
Drain any water that has penetrated into the manhole to a surface drainage system
(e.g. gravel).